public function ping()
{
// if (!is_object($this->pinger)) {
// if (!isset($this->app->adapters->container['content_ping'])) {
// $app = $this->app;
// $this->app->adapters->container['content_ping'] = function ($c) use ($app) {
// return new Adapters\Ping\SearchEngines($app);
// };
// }
// $this->pinger = $this->app->adapters->container['content_ping'];
// }
//
// return $this->pinger->ping();
}